body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}

a {
  color: #00B7FF;
}
.p1{
  font-size: 39px;
  color:red
}
/* button{
  width: 100px;
  height: 20px;
  border-radius: 16px;
  background-color: rgb(111, 183, 190);
  border: none;
} */

*{
  box-sizing: border-box;
}
#app{
  width: 500px;
  height: 700px;
  margin: 10px auto;
  box-shadow: 0 0 4px #333;
  overflow: scroll;
}
.box{
  width: 500px;
  height: 190px;
  border-bottom: 1px solid #cdcdcd;
  display: flex;
}
img{
  width: 200px;
  height: 160px;
}
button{
  position: fixed;
  top: 0;
}